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John Brock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jackson-County, Missouri
Our Model Tree links this John Brock across the 1930 and 1940 US Censuses in Jackson-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 6-person household.
Age 28
b. ~1912
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Missouri |
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Additional Details | |
| Occupation | Operator Bottle Machine |
| Industry | Brewing Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1750 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Operator Bottle Machine |
| Township / Ward | Kansas City |
| Est. Birth Year | ~1912 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Fred Brock | Head | — | 56 | ~1884 |
| Fred Brock | Son | — | 25 | ~1915 |
| John Brock | Son | — | 28 | ~1912 |
| Elizabeth Brock | Spouse | — | 48 | ~1892 |
| Robert Brock | Son | — | 6 | ~1934 |
| Donald Brock | Son | — | 15 | ~1925 |
Census Appearances
1930
Jackson, Missouri
Son, age 16
Jackson, Missouri · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Kansas |
| Occupation | Office Boy |
| Industry | Packing Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Jackson-County, Missouri
Son, age 28
Jackson-County, Missouri · implied b. ~1912 — 6 household members
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Occupation | Operator Bottle Machine |
| Industry | Brewing Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1750 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Brock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Brock
Son · 1940 · age 28 · b. ~1912 · Missouri
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Sibling
Fred Brock
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Brock
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Brock
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jackson-County, Missouri
Open full size
1940 US Federal Census — Jackson-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02177-00066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lilly Bell Field | 51 | Lodger | — | Missouri |
| 42 | Henry L. White | 54 | Head | Payroll Clerk | South Carolina |
| 43 | Bessie White | 43 | Wife | — | Nebraska |
| 44 | Mary Lawson | 19 | Daughter | Stenographer | Missouri |
| 45 | Paul Lawson | 18 | Son | — | Missouri |
| 46 | William Burk | None | Son-in-law | — | — |
| 47 | Allene Burk | 23 | Daughter | Stenographic | Missouri |
| 48 | Arnold Brady | 44 | Head | Salesman | Pennsylvania |
| 49 | Mabel Brady | 32 | Wife | Comptometer | Nebraska |
| 50 | Fred Brock | 56 | Head | Music Teacher | Iowa |
| 51 | Elizabeth Brock | 48 | Wife | — | Kansas |
| 52 | John Brock THIS PERSON | 28 | Son | Operator Bottle Machine | Kansas |
| 53 | Fred Brock | 25 | Son | Order Clerk | Kansas |
| 54 | Donald Brock | 15 | Son | Delivery Boy | Missouri |
| 55 | Robert Brock | 6 | Son | — | Missouri |
| 56 | Edward H. Rutter | 71 | Head | Elevator Operator | Missouri |
| 57 | Walter Rutter | 37 | Son | Supt. & Engineer | Missouri |
| 58 | Irma Rutter | 27 | Daughter | — | Texas |
| 59 | Bruno Corte | 32 | Head | Adjuster | Missouri |
| 60 | Gustavo Corte | 58 | Father | Teacher | Italy |
| 61 | Elma Bush | 57 | Head | — | Colorado |
| 62 | Arch F. Moyer | 60 | Head | Carpenter | Missouri |
| 63 | Pearl A. Moyer | 56 | Wife | — | Iowa |
| 64 | Marvin Roberts | 57 | Head | Carpenter | Missouri |
| 65 | Ale Roberts | 53 | Wife | — | Missouri |
| 66 | Maude Baker | 62 | Lodger | — | Indiana |
| 67 | Frankie Hine | 64 | Head | — | Missouri |
| 68 | George Hine | 40 | Son | Lawyer | Missouri |
| 69 | Bess Johnson | 50 | Lodger | — | Missouri |
| 70 | Israel Raizen | 64 | Head | Shipping Clerk | Russia |
| 71 | Rachael A. Raizen | 58 | Wife | — | Russia |
| 72 | Jake Raizen | 21 | Son | Drug Clerk | Illinois |
| 73 | Shelba Nichols | 28 | Head | Supervisor | Missouri |
| 74 | Zelda Nichols | 25 | Wife | — | Missouri |
| 75 | Douglas Nichols | 5 | Son | — | Missouri |
| 76 | Nan Nichols | 2 | Daughter | — | Missouri |
| 77 | Owen Mcinness | 49 | Head | Hair Stylist | Missouri |
| 78 | Helen Mcinness | 39 | Wife | Steno-Bookkeeper | Indiana |
| 79 | Eileen Mcinness | 13 | Daughter | — | Kansas |
| 80 | Mary Banker | 76 | Mother-in-law | — | Indiana |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)